Traditionally conversion vans have been categorized into two configurations. A low top or low profile, or high top/high profile. A low top or low profile refers to a stock full size van.
A Low Top/Low Profile Conversion Van
You'll notice that there's been no change to the top of the van.
A High Top/ High Profile Conversion Van
You'll notice that the top is higher than the previous van. Upfitters cut off the top of the original van, and add a fiberglass shell to the top of the van to increase headroom.
Now the Ram Promaster Low Top Conversion Van
For comparison, the Ram Promaster High Top Conversion Van
A Ram Promaster Low Top Conversion Van is not the same as the traditional Low Top conversion van terminology. The overall height of a Ram Promaster Low Top is a little shorter than the traditional high top conversion van. The advantages the Ram Low Top has over the traditional high top conversion van are:
- Not having to remove the roof, maintains original structural rigidity
- Increased overhead headroom due to the roof being flat, and not contoured like the traditional high top
- Overall better fuel economy, for 2015 GM has done away with the Chevy and GMC 1500 series full size vans due to not meeting the government standards for the vehicle weight class